ImageMagick (TM) is a package for the automated and interative manipulation of images. It supports the display and interactive manipulation of images when used with the X Window System. Although the software is copyrighted by ImageMagick Studio, it is available for free and can be redistributed without fee. ImageMagick may be used as a component of both open source and proprietary applications. ImageMagick compiles and runs under Unix, Linux, Windows '95 and later, Apple MacOS, and Compaq VMS. Binary packages are available for most operating systems. Application programming interfaces (APIs) are provided to support development of image processing applications in the C, C++, and Perl languages.
The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. It provides client accuracies typically within a millisecond on LANs and up to a few tens of milliseconds on WANs relative to a primary server synchronized to Coordinated Universal Time (UTC) via a Global Positioning Service (GPS) receiver, for example.
QEMU is a fast processor emulator. Using dynamic translation it achieves a reasonable speed while being easy to port to new host CPUs. In its user mode emulation mode, it can launch Linux processes compiled for one CPU on another CPU. Linux system calls are converted because of endianness and 32/64 bit mismatches. In its full system emulation mode, it emulates a full system, including a processor and various peripherials.
LFT (Layer Four Traceroute) is a sort of "traceroute" that often works much faster than the commonly-used Van Jacobson method and goes through many configurations of packet-filter based firewalls. More importantly, LFT implements numerous other features, including TCP, UDP, or ICMP-based traces, AS number lookups through several reliable sources, loose source routing, netblock name lookups, and more. LFT also distinguishes between layer-4 protocols, which make its statistics slightly more realistic, and gives a savvy user the ability to trace protocol routes, not just layer-3 hops.
wyoGuide is a tutorial, a collection of guidelines for building cross-platform applications with a well-designed, consistent look and feel. It gives ideas and advice on how an application and its GUI could and should be written. Development with these guidelines gives the GUI of an application a standard set of base functionality. wyoGuide also provides sample code for each guideline written in C++ using the wxWidgets (formerly wxWindows) framework. For a seasoned developer it shouldn't be difficult to adapt these guidelines to other languages or frameworks.
Sglib is a generic library for C that was inspired by the Standard Template Library from C++. It consists of a single header file and no binary code. It defines useful macros for sorting arrays and manipulating lists, sorted lists, double linked lists, hashed containers, and red-black trees. Macros are parametrized by the type of the data structure. The library does not enforce its own data representation, but acts on user-defined types. It does not enforce any particular memory management system.